Hemopexin-dependent heme uptake via endocytosis regulates the Bach1 transcription repressor and heme oxygenase gene activation

H Hada, T Shiraki, M Watanabe-Matsui… - Biochimica et Biophysica …, 2014 - Elsevier
Background Intracellular heme plays versatile roles in a variety of physiological processes
including mitochondrial respiration. Heme also induces the expression of genes such as …

Receptor-mediated transport of heme by hemopexin regulates gene expression in mammalian cells

J Alam, A Smith - Journal of Biological Chemistry, 1989 - Elsevier
Hemopexin (HPX) transports heme to liver parenchymal cells, undergoes receptor-mediated
endocytosis, and recycles intact. Incubation of mouse hepatoma (Hepa) cells with heme …

Hemopexin from four species inhibits the association of heme with cultured hepatoma cells or primary rat hepatocytes exhibiting a small number of species specific …

S Taketani, S Immenschuh, S Go, PR Sinclair… - Hepatology, 1998 - journals.lww.com
Hemopexin (Hx) binds heme with a very high affinity (K d< 0.1 pmol/L). It has been
implicated as a major vehicle for the transport of heme into liver cells, involving a receptor …

Hemopexin: structure, function, and regulation

E Tolosano, F Altruda - DNA and cell biology, 2002 - liebertpub.com
Hemopexin (HPX) is the plasma protein with the highest binding affinity to heme among
known proteins. It is mainly expressed in liver, and belongs to acute phase reactants, the …

[HTML][HTML] Establishment of stable chinese hamster ovary cell line capable of expressing human recombinant hemopexin: a promising therapeutic modality against …

M Bahadori, F Amiri, M Movahed… - Gene, Cell and …, 2017 - brieflands.com
Background: Hemolytic anemia is associated with intravascular heme release and oxidative
stresses that lead to endothelial dysfunctions. Hemopexin (HPX) is a plasma heme-binding …

Defective recovery and severe renal damage after acute hemolysis in hemopexin-deficient mice

E Tolosano, E Hirsch, E Patrucco… - Blood, The Journal …, 1999 - ashpublications.org
Hemopexin (Hx) is a plasma glycoprotein mainly expressed in liver and, less abundantly, in
the central and peripheral nervous systems. Hx has a high binding affinity with heme and is …

Hemopexin prevents endothelial damage and liver congestion in a mouse model of heme overload

F Vinchi, S Gastaldi, L Silengo, F Altruda… - The American journal of …, 2008 - Elsevier
Intravascular hemolysis results in the release of massive amounts of hemoglobin and heme
into plasma, where they are rapidly bound by haptoglobin and hemopexin, respectively …

Revisiting the interaction of heme with hemopexin

MS Detzel, BF Schmalohr, F Steinbock… - Biological …, 2021 - degruyter.com
In hemolytic disorders, erythrocyte lysis results in massive release of hemoglobin and,
subsequently, toxic heme. Hemopexin is the major protective factor against heme toxicity in …

Safe coordinated trafficking of heme and iron with copper maintain cell homeostasis: Modules from the hemopexin system

R Vanacore, JD Eskew, L Sung, T Davis, A Smith - Biometals, 2019 - Springer
Studies with patients, animal models of human disease and hemopexin null mice have
shown that the heme-binding protein hemopexin is vital for the protection of a variety of cell …

Safety and feasibility of the gene transfer of hemopexin for conditions with increased free heme

F de Lima, BW Hounkpe… - Experimental …, 2023 - journals.sagepub.com
Heme is a fundamental molecule for several biological processes, but when released in the
extracellular space such as in hemolytic diseases, it can be toxic to cells and tissues …